Merge to XFA: Cleanup: Mark methods with the override keyword.

fpdfsdk/src/formfiller/FFL_TextField.cpp

Index: fpdfsdk/src/formfiller/FFL_TextField.cpp
diff --git a/fpdfsdk/src/formfiller/FFL_TextField.cpp b/fpdfsdk/src/formfiller/FFL_TextField.cpp
index a1c7d78d6a84834b0ce9cb0aa67a795df8b2f71a..3778c61312561d7bf2478380eb88ed7b0d7b7035 100644
--- a/fpdfsdk/src/formfiller/FFL_TextField.cpp
+++ b/fpdfsdk/src/formfiller/FFL_TextField.cpp
@@ -296,22 +296,9 @@ void CFFL_TextField::OnSetFocus(CPWL_Wnd* pWnd) {
                                      nCharacters, TRUE);
 
     pEdit->SetEditNotify(this);
-    // pUndo->BeginEdit(pDocument);
   }
 }
 
 void CFFL_TextField::OnKillFocus(CPWL_Wnd* pWnd) {}
 
-FX_BOOL CFFL_TextField::CanCopy(CPDFSDK_Document* pDocument) {
-  return FALSE;
-}
-
-FX_BOOL CFFL_TextField::CanCut(CPDFSDK_Document* pDocument) {
-  return FALSE;
-}
-
-FX_BOOL CFFL_TextField::CanPaste(CPDFSDK_Document* pDocument) {
-  return FALSE;
-}
-
 void CFFL_TextField::OnAddUndo(CPWL_Edit* pEdit) {}